Four point contact ball bearing

The four-point contact ball bearing is the kind of bearing which can be separable. The 0000 type has a double semi-inner ring, and the OJ0000 type has a double semi-outer ring, and the contact angle is 35°. When there is pure radial load or no load, the steel ball and the ring are in four-point contact; under the action of pure axial load, the steel ball and the ring are in two-point contact and can withstand bidirectional axial load. This type of bearing can also withstand moment loads and combine the functions of single row and double row angular contact ball bearings. This kind of bearing can only guarantee normal operation when two-points contact is formed.

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Outer dimension (mm)				Rated Load (KN)		Action point (mm)	Bearing Model		Weight (kg)
d	D	B	rmin	Cr	Cor	a	QJ type	QJF type
100	180	34	2.1	195	215	98	QJ220	QJF220	4
200	360	70	4	535	850	280	QJ1240	QJF1240	32.5
260	480	90	5	815	1535	370	QJ1252	QJF1252	78
300	540	98	5	940	1915	420	QJ1260	QJF1260	105
360	540	82	5	750	1645	315	QJ1072	QJF1072	70.5
400	600	90	5	870	2030	350	QJ1080	QJF1080	95.5
420	620	90	5	885	2115	364	QJ1084	QJF1084	99.5
460	680	100	6	1010	2550	399	QJ1092	QJF1092	130

ZYS bearing designation	Outer dimension (mm)				Rated Load (N )			Lubrication Speed (r/min )
ZYS bearing designation	(d) Bore Diameter		(D) Outside Diameter	(B) Width	(C) Dynamic Load	(Co) Static Load		Grease	Oil
QJ 203	17		40	12	15900		10600	14000	19000
QJ 205	25		52	15	25100		20000	9500	14000
QJ 206	30		62	16	35100		28500	8500	12000
QJ 207	35		72	17	46200		39000	7500	10000
QJ 208	40		80	18	52700		45000	6700	9000
QJ 209	45		85	19	58500		51000	6300	8500
QJ 210	50		90	20	61800		56000	5600	7500
QJ 211	55		100	21	79300		76500	5300	7000
QJ 212	60		110	22	92300		86500	4800	6300
QJ 213	65		120	23	104000		104000	4300	5600
QJ 214	70	125		24	114000		114000	4300	5600
QJ 215	75	130		25	117000		122000	4000	5300
QJ 216	80	140		26	138000		146000	3600	4800
QJ 217	85	150		28	148000		160000	3400	4500
QJ 218N2	90	160		30	174000		186000	3200	4300
QJ 219N2	95	170		32	199000		212000	3000	4000
QJ 220N2	100	180		34	225000		240000	2800	3800
QJ 222N2	110	200		38	265000		305000	2400	3400
QJ 224N2	120	215		40	286000		340000	2200	3200
QJ 226N2	130	230		40	296000		365000	1900	2800
QJ 228N2	140	250		42	325000		440000	1800	2600
QJ 230N2	150	270		45	338000		465000	1700	2400
QJ 232N2	160	290		48	390000		570000	1600	2200
QJ 234N2	170	310		52	397000		600000	1600	2200
QJ 236N2	180	320		52	436000		680000	1500	2000
QJ 248	240	440		72	650000		1200000	1000	1500
QJ 303	17	47		14	23400		15000	12000	17000
QJ 304	20	52		15	29600		20000	10000	15000
QJ 306	30	72		19	49400		39000	7500	10000
QJ 307	35	80		21	59200		46500	7000	9500
QJ 308	40	90		23	71500		58500	6300	8500
QJ 309	45	100		25	93600		76500	5600	7500
QJ 310	50	110		27	111000		91500	5000	6700
QJ 311	55	120		29	127000		108000	4500	6000
QJ 312	60	130		31	146000		125000	4300	5600
QJ 313	65	140		33	165000		146000	4000	5300
QJ 314	70	150		35	186000		166000	3600	4800
QJ 315N2	75	160		37	199000		186000	3400	4500
QJ 316N2	80	170		39	216000		208000	3200	4300
QJ 317N2	85	180		41	234000		236000	3000	4000
QJ 318N2	90	190		43	265000		N/A	2800	3800
QJ 319N2	95	200		45	286000		315000	2600	3600
QJ 320N2	100	215		47	307000		340000	2400	3400
QJ 322N2	110	240		50	364000		430000	2000	3000
QJ 324N2	120	260		55	390000		490000	1900	2800
QJ 326N2	130	280		58	423000		560000	1800	2600
QJ 328N2	140	300		62	468000		640000	1700	2400
QJ 332	160	340		68	540000		815000	1500	2000
QJ 334N2	170	360		72	618000		965000	1400	1900
QJ 336 N2	180	380		75	637000		1020000	1300	1800
QJ 344	220	460		88	780000		1400000	1000	1500